Triple
T8765279
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | MBTA Green Line tunnels |
E208324
|
entity |
| Predicate | instanceOf |
P0
|
FINISHED |
| Object | urban transit infrastructure |
C2489
|
CONCEPT FINISHED |
How this triple was built (1 step)
Every LLM step that produced this triple, in pipeline order — named-entity classification, the disambiguation choices (the exact options shown, with the pick highlighted), and the generated description. The batch + timestamp of each is in the Provenance table below.
CD
Concept disambiguation
gpt-5-mini-2025-08-07
Target class: urban transit infrastructure Context triple: [MBTA Green Line tunnels, instanceOf, urban transit infrastructure]
-
A.
public transportation infrastructure
chosen
Public transportation infrastructure encompasses the physical and organizational systems—such as buses, trains, stations, tracks, and supporting facilities—that enable the efficient movement of people via shared transit services.
-
B.
public transit system
A public transit system is an organized network of shared transportation services—such as buses, trains, subways, and trams—designed to move large numbers of people efficiently within and between urban and regional areas.
-
C.
rail transit
Rail transit is a public transportation system that moves passengers or freight along fixed steel tracks using trains, subways, trams, or light rail vehicles, typically in urban or intercity corridors.
-
D.
commuter rail infrastructure
Commuter rail infrastructure comprises the physical and operational systems—such as tracks, stations, signaling, power, and maintenance facilities—designed to support frequent, reliable passenger train service between suburbs and urban centers.
-
E.
transport infrastructure network
A transport infrastructure network is an interconnected system of physical routes and facilities—such as roads, railways, ports, and airports—designed to enable the efficient movement of people and goods across regions.
- F. None of above.
Provenance (1 batch)
The batch behind each pipeline step, in order, with when it ran. Timestamps are batch-level — stages were processed in waves, so the object chain (NER → NED1 → NEDg → NED2) reads in order, but predicate / elicitation batches can sit in a different wave.
| Step | Stage | Batch ID | Status | When |
|---|---|---|---|---|
| creating | Elicitation | batch_69ca835df7e08190ac875664cca8f9ca |
completed | March 30, 2026, 2:06 p.m. |
Created at: March 30, 2026, 6:40 p.m.